111899744 has 48 divisors (see below), whose sum is σ = 242657856. Its totient is φ = 50371200.

The previous prime is 111899741. The next prime is 111899771. The reversal of 111899744 is 447998111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 111899695 and 111899704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111899741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36179 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (5055372).

Almost surely, 2^111899744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111899744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121328928).

111899744 is an abundant number, since it is smaller than the sum of its proper divisors (130758112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111899744 is a wasteful number, since it uses less digits than its factorization.

111899744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099 (or 3091 counting only the distinct ones).

The product of its digits is 72576, while the sum is 44.

The square root of 111899744 is about 10578.2675330131. The cubic root of 111899744 is about 481.8845817893.

The spelling of 111899744 in words is "one hundred eleven million, eight hundred ninety-nine thousand, seven hundred forty-four".